Siemens SIMATIC S7-1500 System Manual page 273

①
Copying the SIMATIC memory card
The primary CPU copies parts of the load memory to the backup CPU:
• User program, system blocks and project data of the CPU from the \SIMATIC.S7S folder
NOTE
Overwriting load memory content
Copying overwrites the load memory contents on the SIMATIC memory card of the backup
CPU with the content of the primary CPU load memory.
The display of the primary CPU indicates the copying progress.
Table 11-6 Copying the SIMATIC memory card
The backup CPU copies the transferred load memory contents to its work memory.
②
Restart of the backup CPU
The backup CPU restarts and automatically switches back to the SYNCUP operating state.
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
Primary CPU
RUN-Syncup
Syncup...
Copying memory card
content to Backup PLC.
7% 8,20 MB / 113,73 MB
Step 1 of 5
Commissioning
11.4 Operating and system states
Backup CPU
SYNCUP
Overview
CPU 1517H-3 PN
X1: 192.168.0.1
X2: 192.168.1.1
[Backup]
6ES7 517-3HP00-0AB0
V3.0
OK
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